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Discussion Starter #1 (Edited)
All,

Registered on this forum after buying a 2006 Dodge Ram 1500 with a few small issues. The one that has me stumped is the 3 passenger doors will lock from the button on the key, the driver's side door, and the passenger side door, but will not unlock. The driver's door unlocks and locks normally from all of the unlock/lock switches. On the locks that won't unlock, I put my ear close to the doors where the actuator is and it will make a noise like its "trying" to unlock but it doesn't push the lock up.
Looking online, the common problems were either 1) 3 broken actuators, 2)frayed wires from where the door opens and closes
I put in a brand new actuator on the front passenger door, and it didn't change.

I then pulled the wiring out of the door and inspected it for any frayed wires and then bought a multimeter and discovered how to inspect continuity, and it did have it for the section in the door.

I also looked at the fuses to see if there was a obvious "unlock passenger door" fuse that was blown, but I see only one that said anything about locks and it was fine.


So-reading more about it online, is there a way to test with a multimeter if the actuator "solenoid"(is that the right term? Is that the electrical component that controls the motor that pushes the lock/unlock rod up and down?) is getting enough power? 12V? Is that correct? I've learned alot in the past couple days and its great, just curious about how it works. I figured maybe the actuator motor isn't getting enough "juice" to unlock.

Going to continue researching on what it could be, it seems so strange that it is the 3 passenger doors AND from all the buttons/switches that unlock it

Thanks all for any help!

P.S. Also, will post a picture with the type of multimeter I have


https://drive.google.com/file/d/0Bx0QxJsmriGcV21iX3BzQTI3dXM/view?usp=sharing
 

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It seems that you have a broken wire in the protective sheathing. Not uncommon. The most common area is between the door frame and the door. You will need to access the wires and remove the tye wraps and tug the ends of the wires individually. If the wire is broken internally the plastic casing will tear apart and then you just need to reconnect the wire. Do not over tighten the replacement tye wrap.
 
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